Published Paper Details:

This paper presents a detailed short circuit analysis of the 33/11 kV MSEDCL substation using ETAP (Electrical Transient Analyzer Program) software. The substation, located in a critical urban zone, is responsible for distributing power to several essential areas, including medical and residential facilities. Short circuit faults--such as three-phase, line-to-ground, line-to-line, and double line-to-ground--can severely impact power system reliability if not properly analyzed and mitigated. In this study, real-time data was collected from the MSEDCL substation, including transformer ratings, circuit breaker settings, current and potential transformer ratios, and system layout. The substation was modeled in ETAP, and fault simulations were conducted on the 11 kV bus to observe the system's behavior under various fault conditions. The results provided valuable insights into fault current magnitudes, equipment stress levels, and the adequacy of existing protection systems. Based on the analysis, recommendations were made to improve protection coordination and ensure safer operation. This study highlights the importance of short circuit analysis in designing and maintaining reliable power distribution systems and supports the development of optimized protection schemes for urban substations.